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102356870620 = 22543119019617
BaseRepresentation
bin101111101010011110…
…0011110010111011100
3100210012102111202221011
41133110330132113130
53134111324324440
6115004434545004
710252333021264
oct1372474362734
9323172452834
10102356870620
113a45586a964
1217a07138164
139862ba7344
144d500947a4
1529e10e19ea
hex17d4f1e5dc

102356870620 has 24 divisors (see below), whose sum is σ = 219948254064. Its totient is φ = 39990590976.

The previous prime is 102356870617. The next prime is 102356870621. The reversal of 102356870620 is 26078653201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102356870621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59508949 + ... + 59510668.

It is an arithmetic number, because the mean of its divisors is an integer number (9164510586).

Almost surely, 2102356870620 is an apocalyptic number.

102356870620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102356870620 is an abundant number, since it is smaller than the sum of its proper divisors (117591383444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102356870620 is a wasteful number, since it uses less digits than its factorization.

102356870620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119019669 (or 119019667 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 102356870620 in words is "one hundred two billion, three hundred fifty-six million, eight hundred seventy thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 119019617 238039234 476078468 595098085 1190196170 2380392340 5117843531 10235687062 20471374124 25589217655 51178435310 102356870620